{"id":"CVE-2026-76443","aliases":["EUVD-2026-77623","GHSA-7r4m-5539-57x5"],"status":"published","title":"Cisco Secure Email Gateway Security Hardening Release","description":"As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.\r\n\r\nThe vulnerabilities tracked by CVE-2026-76443 are related to issues with improper neutralization that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-707.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.02354,"percentile":0.83965,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-707"],"published":"2026-09-14T16:08:59Z","modified":"2026-09-15T18:33:24Z","exploits":[{"source":"metasploit","id":"exploit/unix/smtp/cisco_secure_email_gateway_smime_sqli_rce","title":"Cisco Secure Email Gateway S/MIME SQL Injection RCE","type":"exploit","platform":"Python,Unix","date":"2026-09-14","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/unix/smtp/cisco_secure_email_gateway_smime_sqli_rce"}],"products":[{"vendor":"cisco","product":"cisco secure email"},{"vendor":"cisco","product":"cisco secure email and web manager"}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-esa-dfCrfXkm"},{"url":"https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76443"},{"url":"https://github.com/advisories/GHSA-7r4m-5539-57x5"}],"sources":{"cve":[{"id":"CVE-2026-76443","title":"Cisco Secure Email Gateway Security Hardening Release","description":"As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.\r\n\r\nThe vulnerabilities tracked by CVE-2026-76443 are related to issues with improper neutralization that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-707.","status":"published","published":"2026-09-14T16:08:59.278Z","modified":"2026-09-15T17:03:58.065Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-707"],"updated_at":"2026-11-02T13:46:32.755125Z"}],"euvd":[{"id":"EUVD-2026-77623","description":"As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.\r\n\r\nThe vulnerabilities tracked by CVE-2026-76443 are related to issues with improper neutralization that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-707.","status":"published","published":"2026-09-14T16:08:59Z","modified":"2026-09-15T17:03:58Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T17:28:17.768191Z"}],"ghsa":[{"id":"GHSA-7r4m-5539-57x5","title":"As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure...","description":"As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.\n\nThe vulnerabilities tracked by CVE-2026-76443 are related to issues with improper neutralization that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-707.","status":"published","published":"2026-09-14T18:31:22Z","modified":"2026-09-15T18:33:24Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-707"],"updated_at":"2026-11-02T15:11:54.818367Z"}],"nvd":[{"id":"CVE-2026-76443","description":"As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.\r\n\r\nThe vulnerabilities tracked by CVE-2026-76443 are related to issues with improper neutralization that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-707.","status":"published","published":"2026-09-14T17:17:50.97Z","modified":"2026-09-15T18:19:13.38Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-707"],"updated_at":"2026-11-02T14:12:46.980627Z"}]}}